fix: Fix product page syntax errors

1. Remove duplicate/broken code in product tables section
2. Fix PostCSS config for Tailwind 4
3. Add @tailwindcss/postcss dependency
4. Remove --production flag from Dockerfile (sharp required)

All fixes enable successful Docker build with favicon working.

node_modules/domutils/lib/esm/index.js

@@ -0,0 +1,10 @@
+export * from "./stringify.js";
+export * from "./traversal.js";
+export * from "./manipulation.js";
+export * from "./querying.js";
+export * from "./legacy.js";
+export * from "./helpers.js";
+export * from "./feeds.js";
+/** @deprecated Use these methods from `domhandler` directly. */
+export { isTag, isCDATA, isText, isComment, isDocument, hasChildren, } from "domhandler";
+//# sourceMappingURL=index.js.map